CBSE Maths 12 Science MCQ Application of Derivatives Solutions in English to enable students to get Solutions in a narrative video format for the specific question.
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Question:
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Question 1 : Sand is pouring from a pipe at the rate of . The falling sand forms a cone on the ground in such a way that the height of the cone is always one-sixth of the radius of the base. How fast is the height of the sand cone increasing, when the height is 4 cm? (View Answer Video)
Question 2 : Find approximate value of (View Answer Video)
Question 3 :
The total revenue in Rupees received from the sale of 'x' units of a product is given by :
The marginal revenue, when x=15 is :
Question 4 : A balloon, which always remains spherical on inflation, is being inflated by pumping in 900 cubic centimetres of gas per second. Find the rate at which the radius of the balloon increases when the radius is 15 cm. (View Answer Video)
Question 5 : The normal at the point (1,1) on the curve is (View Answer Video)
Question 1 : Find the area of the region enclosed by the parabola the line y = x + 2. (View Answer Video)
Question 2 : Using the method of integration, find the area of the region bounded by the lines 3x - 2y + 1 = 0, 2x + 3y -21 = 0 and x - 5y + 9 = 0. (View Answer Video)
Question 3 : Using integration, find the area of the triangle formed by a positive x-axis and tangent and normal to the circle at . (View Answer Video)
Question 4 : A farmer has a field of shape bounded by and x = 3, he wants to divide this into his two sons equally by a straight line x = c. Can you find c? What value, you find in the person ? (View Answer Video)
Question 5 : Find the area of the given curves and given lines:
and x-axis (View Answer Video)
Question 1 : Write a vector in the direction of the vector that has magnitude 9 units. (View Answer Video)
Question 2 : Find the value of x and y so that the vectors and are equal. (View Answer Video)
Question 3 : Find |a| and |b|, if (a + b).(a - b) = 8 and |a| = 8|b|. (View Answer Video)
Question 4 : Find the scalar quantities from the following:
(i) 10 kg (ii) 2 m north-west (iii)
(iv) 40 W (v) (vi) (View Answer Video)
Question 5 : Find the unit vector in the direction of vector PQ, where P and Q are the points (1, 2, 3) and (4, 5, 6) respectively. (View Answer Video)
Question 1 :
Write the value of the following:
Question 2 : If then value of y lies between.....? (View Answer Video)
Question 3 : then find the value of x. (View Answer Video)
Question 4 : Write in the simplest form:
(View Answer Video)
Question 5 : Find the principal value of sin-1 . (View Answer Video)